Black Hawk topographic map

Average elevation: 291 m

Average elevation: 248 m

Average elevation: 419 m

Average elevation: 347 m

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Average elevation: 401 m

Average elevation: 223 m

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Average elevation: 341 m

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Average elevation: 362 m

Average elevation: 382 m

Several large working-class neighborhoods and industrial sectors have been built on what is called "Muscatine Island". This flat, sandy expanse was largely underwater before a portion of the Mississippi River rerouted to follow the course of the present-day Muscatine Slough. It is unclear when the river…

Average elevation: 189 m

Average elevation: 426 m

Average elevation: 317 m

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Average elevation: 361 m

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Average elevation: 357 m

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Average elevation: 377 m

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Average elevation: 343 m

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Average elevation: 370 m

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Average elevation: 331 m

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Average elevation: 334 m

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Average elevation: 398 m

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Average elevation: 332 m

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Average elevation: 426 m

Average elevation: 335 m

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Average elevation: 243 m

Average elevation: 432 m

Average elevation: 412 m

Average elevation: 205 m

Average elevation: 315 m

Average elevation: 242 m

Average elevation: 348 m

Average elevation: 308 m